Developing countries in the context of Water storage

The World Bank Group (WBG) is a family of five international organizations that make leveraged loans to developing countries. It is the largest and best-known development bank in the world and an observer at the United Nations Development Group. The bank is headquartered in Washington, D.C., in the United States. It provided around $98.83 billion in loans and assistance to "developing" and transition countries in the 2021 fiscal year. The bank's stated mission is to achieve the twin goals of ending extreme poverty and building shared prosperity. Total lending as of 2015 for the last 10 years through Development Policy Financing was approximately $117 billion. Its five organizations have been established over time:

• International Bank for Reconstruction and Development (IBRD), 1944
• International Development Association (IDA), 1960
• International Finance Corporation (IFC), 1956
• International Centre for Settlement of Investment Disputes (ICSID), 1965
• Multilateral Investment Guarantee Agency (MIGA), 1988

The first two are sometimes collectively referred to as the World Bank. They provide loans and grants to the governments of low- and middle-income countries for the purpose of pursuing economic development. These activities include fields such as human development (e.g. education, health), agriculture and rural development (e.g. irrigation and rural services), environmental protection (e.g. pollution reduction, establishing and enforcing regulations), infrastructure (e.g. roads, urban regeneration, and electricity), large industrial construction projects, and governance (e.g. anti-corruption, legal institutions development). The IBRD and IDA provide loans at preferential rates to member countries, as well as grants to the poorest countries. Loans or grants for specific projects are often linked to wider policy changes in the sector or the country's economy as a whole. For example, a loan to improve coastal environmental management may be linked to the development of new environmental institutions at national and local levels and the implementation of new regulations to limit pollution. Furthermore, the World Bank Group is recognized as a leading funder of climate investments in developing countries.

In economics, the primary sector is the economic sector which comprises industry involved in the extraction and production of raw materials, such as farming, logging, fishing, forestry and mining. The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries. For example, in 2018, agriculture, forestry, and fishing comprised more than 15% of GDP in sub-Saharan Africa but less than 1% of GDP in North America.

In developed countries the primary sector has become more technologically advanced, enabling for example the mechanization of farming, as compared with lower-tech methods in poorer countries. More developed economies may invest additional capital in primary means of production: for example, in the United States Corn Belt, combine harvesters pick the corn, and sprayers spray large amounts of insecticides, herbicides and fungicides, producing a higher yield than is possible using less capital-intensive techniques. These technological advances and investment allow the primary sector to employ a smaller workforce, so developed countries tend to have a smaller percentage of their workforce involved in primary activities, instead having a higher percentage involved in the secondary and tertiary sectors.

A developed country, or advanced country, is a country that has a high quality of life, developed economy, and advanced technological infrastructure relative to other less industrialized nations. Most commonly, the criteria for evaluating the degree of economic development are the gross domestic product (GDP), gross national product (GNP), the per capita income, level of industrialization, amount of widespread infrastructure and general standard of living. Which criteria are to be used and which countries can be classified as being developed are subjects of debate. Different definitions of developed countries are provided by the International Monetary Fund and the World Bank; moreover, HDI ranking is used to reflect the composite index of life expectancy, education, and income per capita. In 2025, 40 countries fit all three criteria, while an additional 22 countries fit two out of three.

Developed countries have generally more advanced post-industrial economies, meaning the service sector provides more wealth than the industrial sector. They are contrasted with developing countries, which are in the process of industrialisation or are pre-industrial and almost entirely agrarian, some of which might fall into the category of Least Developed Countries. As of 2023, advanced economies comprise 57.3% of global GDP based on nominal values and 41.1% of global GDP based on purchasing-power parity (PPP) according to the IMF.

The least developed countries (LDCs) are developing countries listed by the United Nations that exhibit the lowest indicators of socioeconomic development. The concept of LDCs originated in the late 1960s and the first group of LDCs was listed by the UN in its resolution 2768 (XXVI) on 18 November 1971.

A country can be classified among the least developed countries when it meets the three following criteria:

Climate change and poverty are deeply intertwined because climate change disproportionally affects poor people in low-income communities and developing countries around the world. The impoverished have a higher chance of experiencing the ill-effects of climate change due to the increased exposure and vulnerability. Vulnerability represents the degree to which a system is susceptible to, or unable to cope with, adverse effects of climate change including climate variability and extremes.

Climate change highly exacerbates existing inequalities through its effects on health, the economy, and human rights. The Intergovernmental Panel on Climate Change's (IPCC) Fourth National Climate Assessment Report found that low-income individuals and communities are more exposed to environmental hazards and pollution and have a harder time recovering from the impacts of climate change. For example, it takes longer for low-income communities to be rebuilt after natural disasters. According to the United Nations Development Programme, developing countries suffer 99% of the casualties attributable to climate change.

In international relations, aid (also known as international aid, overseas aid, foreign aid, economic aid or foreign assistance) is – from the perspective of governments – a voluntary transfer of resources from one country to another. The type of aid given may be classified according to various factors, including its intended purpose, the terms or conditions (if any) under which it is given, its source, and its level of urgency. For example, aid may be classified based on urgency into emergency aid and development aid.

Emergency aid is rapid assistance given to a people in immediate distress by individuals, organizations, or governments to relieve suffering, during and after man-made emergencies (like wars) and natural disasters. Development aid is aid given to support development in general which can be economic development or social development in developing countries. It is distinguished from humanitarian aid as being aimed at alleviating poverty in the long term, rather than alleviating suffering in the short term.

The term Third World arose during the Cold War to define countries that remained non-aligned with either NATO or the Warsaw Pact. The United States, Canada, Japan, South Korea, the Southern Cone, Western European countries and other allies represented the "First World", while the Soviet Union, China, Cuba, North Korea, Vietnam, and their allies represented the "Second World". This terminology provided a way of broadly categorizing the nations of the Earth into three groups based on political divisions. Due to the complex history of evolving meanings and contexts, there is no clear or agreed-upon definition of the Third World. Strictly speaking, "Third World" was a political, rather than economic, grouping.

Since most Third World countries were economically poor and non-industrialized, it became a stereotype to refer to developing countries as "third-world." In political discourse, the term Third World was often associated with being underdeveloped. China was labeled "Third World" for several decades in the 20th century before its robust development of the 21st century. Some countries in the Eastern Bloc, such as Cuba, were often regarded as Third World. The Third World was normally seen to include many countries with colonial pasts in Africa, Latin America, Oceania, and Asia. It was also sometimes taken as synonymous with countries in the Non-Aligned Movement. In the dependency theory of thinkers like Raúl Prebisch, Walter Rodney, Theotônio dos Santos, and others, the Third World has also been connected to the world-systemic economic division as "periphery" countries dominated by the countries comprising the economic "core".

Development aid (or development cooperation) is a type of aid given by governments and other agencies to support the economic, environmental, social, and political development of developing countries, as well as least developed, low-income or poor countries. It is distinguished from humanitarian aid by aiming at a sustained improvement in the conditions in developing countries, as well as least-developed, poor of low-income countries, rather than short-term relief. The overarching term is foreign aid (or just aid). The amount of foreign aid is measured though official development assistance (ODA). This is a category used by the Development Assistance Committee (DAC) of the Organisation for Economic Co-operation and Development (OECD) to measure foreign aid.

Aid may be bilateral: given from one country directly to another; or it may be multilateral: given by the donor country to an international organisation such as the World Bank or the United Nations Agencies (UNDP, UNICEF, UNAIDS, etc.) which then distributes it among the developing countries. The proportion is currently about 70% bilateral 30% multilateral.

The Anglosphere, also known as the Anglo-American world, is a Western-led sphere of influence among Anglophone countries. The core group of this sphere of influence comprises five developed countries that maintain close social, cultural, political, economic, and military ties with each other: Australia, Canada, New Zealand, the United Kingdom, and the United States. Although extended definitions do include non-Western and developing countries that were once part of the British Empire and retained English influence and common law upon independence, the Anglosphere is a distinct grouping that is not simply synonymous with countries in which the English language has official status.

Anglosphere countries are generally aligned with each other on global issues and collaborate extensively in matters of security, as exemplified by alliances like Five Eyes. The core countries of the Anglosphere are either NATO members or designated by the United States as major non-NATO allies.

Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.

Malnutrition is a category of diseases that includes undernutrition and overnutrition. Undernutrition is a lack of nutrients, which can result in stunted growth, wasting, and being underweight. A surplus of nutrients causes overnutrition, which can result in obesity or toxic levels of micronutrients. In some developing countries, overnutrition in the form of obesity is beginning to appear within the same communities as undernutrition.

Reform refers to the improvement or amendment of what is wrong, corrupt, unsatisfactory, etc. The modern usage of the word emerged in the late 18th century and is believed to have originated from Christopher Wyvill's Association movement, which identified "Parliamentary Reform" as its primary aim. Reform is generally regarded as antithetical to revolution.

Developing countries may implement a range of reforms to improve living standards, often with support from international financial institutions and aid agencies. This can involve reforms to macroeconomic policy, the civil service, and public financial management.

A hybrid regime is a type of political system often created as a result of an incomplete democratic transition from an authoritarian regime to a democratic one (or vice versa). Hybrid regimes are categorized as having a combination of autocratic features with democratic ones and can simultaneously hold political repressions and regular elections. According to some definitions and measures, hybrid regimes are commonly found in developing countries with abundant natural resources such as petro-states. Although these regimes experience civil unrest, they may be relatively stable and tenacious for decades at a time. There has been a rise in hybrid regimes since the end of the Cold War.

The term hybrid regime arises from a polymorphic view of political regimes that oppose the dichotomy of autocracy or democracy. Modern scholarly analysis of hybrid regimes focuses attention on the decorative nature of democratic institutions (elections do not lead to a change of power, different media broadcast the government point of view and the opposition in parliament votes the same way as the ruling party, among others), from which it is concluded that democratic backsliding, a transition to authoritarianism is the most prevalent basis of hybrid regimes. Some scholars also contend that hybrid regimes may imitate a full dictatorship.

Fishing techniques are methods for catching fish. The term may also be applied to catching other aquatic animals such as molluscs (shellfish, squid, octopus) and edible marine invertebrates.

Fishing techniques include hand-gathering, spearfishing, netting, angling and trapping. Recreational, commercial and artisanal fishers use different techniques, and also, sometimes, the same techniques. Recreational fishers fish for pleasure or sport, while commercial fishers fish for profit. Artisanal fishers use traditional, low-tech methods, for survival in developing countries, and as a cultural heritage in other countries. Mostly, recreational fishers use angling methods and commercial fishers use netting methods.